BRIEF-Russia's Yandex says Q1 net profit down 50 pct on forex loss By: Reuters: Company News April 28, 2016 at 06:07 AM EDT * Q1 net profit falls 50 percent year-on-year to 1.1 billion roubles ($17 million) mainly due to a foreign exchange loss; Read More >> Related Stocks: Yandex Ord Shs Class A